Surgical apparatus for measuring and regulating vacuum pressures



Jan. 12, 1954 J. OGNANOVICH 2,665,691

SURGICAL APPARATUS FOR MEASURING AND REGULATING VACUUM PRESSURES Filed Dec. 12, 1951 TTIHIHHHH-IHIIIHIlllun omtmo Jaw-8253:5533 3 IIIIIIII 2 5 INVENTOR.

95 John Ognanavjoh SUCTION PUMP WATER RESERVOIR I aeajiaww 9%;

ATTDRN EYE Patented Jan. 12, 1954 SURGICAL APPARATUS FOR MEASURING AND REGULATING VACUUM PRESSUBES John Ognanovich, Fort Snelling, Minn. Application December 12, 1951, Serial No. 261,266

This {invention relates to surgical apparatus and particularly to devices for withdrawing blood from the body and also for withdrawing body fluids from areas in which surgery is performed, such as after chest and abdominal operations, and in particular a container having one connection to a vacuum pump, another connection adapted to extend to a patient, another connection to a gage and water reservoir and a fourth connection to a bleeder or air inlet or needle valve.

The purpose of this invention is to provide suction apparatus for withdrawing blood and other fluids from the human body in which means is provided for accurately regulating and maintaining a negative or vacuum pressure continuously as the apparatus is used.

The general range of pressure usedin surgical cases is from 12 to 17 centimeters of water and with the conventional type of apparatus it is diflicult to control the fluctuating pressures resulting from the extraction of blood or other body fluids at these comparatively low pressures. With this thought in mind this invention contemplates a vacuum pressure control unit where in a wide mouth glass jar is directly connected to a suction or vacuum pump and with the jar and pump positioned in an open housing and the jar connected to a gage or water manometer and to a needle valve and also having a suction connection with a needle thereon the amount of the suction is readily adjustable by the needle valve.

The object of this invention is, therefore, to provide a surgical apparatus in which comparatively low vacuum or suction pressures are held constant.

Another object of the invention is to provide a suction control device particular1y .'..adapted for use in surgery in which the device may be used .in combination with apparatus in existence in an operating room or laboratory.

A further object of the invention is to provide a fluid suction device particularly adapted for use in surgery, in which the device is of a comparatively simple and economical construction.

With these and other objects and advantages in view the invention embodies a substantially open housing having a shelf therein with a container positioned upon the shelf, a-suction pump positioned below the shelf, a manometer positioned on one end of the housing,j;a needle valve positioned on the end of the housing on which the manometer is positioned and; suitable connections connecting the container to the pump.

1 Claim. (01. lea-27s) manometer, and needle valve and alsodoi" 'con necting the container to a needle or other device for extracting blood and other fluids fro'm the body.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings wherein:

Figure 1 is a front elevational view illustrating the apparatus and showing a container on a shelf between end walls of a housing and a vacuum pump also between the end walls and mounted on a base from which said end walls extend.

Figure 2 is an end elevational view looking toward the end upon which the manometer and needle valve are positioned.

Figure 3 is a diagrammatic view illustrating a wide mouth container and showing tubes extended therefrom providing connections to a suction pump, manometer, and needle valve and also having a connection adapted to be extended to a patient.

Referring now to the drawings wherein like reference characters denote corresponding parts the improved suction apparatus of this invention includes a wide mouth container III, a vacuum pump H, a water manometer l2, a. needle valve l3, and a housing having a base H, end walls l5 and IS, a back I1 and a support l8.

The container III, which is preferably formed of glass, a transparent plastic or other suitable material is provided with a stopper I! of resilient material and the stopper is provided with a plurality of passages 20 to which tubes to the pump, gage and valve extend and through which a tube 2| for a needle or other suction device that may be used in the patient extends.

The vacuum or suction pump II is connected to the container by a tube 22, the manometer I! by a tube 23 and the needle valve ill by a tube 24.

The lower end of the manometer l2, to which the tube 23 is connected, is provided with a water reservoir 25 and a scale providing a gage 26 extends from the reservoir upwardly in close proximity to the gage or tube whereby pressures are readily observed and as the level of the water moves upwardly air is admitted into the container l0 through the needle valve l3 to break the vacuum and thereby relieve the pressure.

By this means the needle valve i3 provides a control device through which air is bled into the system as the pressure increases. With the needle valve I3 closed pressure will build up in the container In and tubes of the system and when greater pressures which are not desired are indicated on the gage the needle valve I3 is opened so that air is bled into the system to relieve the pressure.

The valve I3 is provided with a filter as indicated by the numeral 21 which is connected to a vertical section of the tube 24 to prevent dust and dirt clogging the orifice of the valve.

With one hand of the operator on the valve [3 constant pressure may be maintained in the system. r

The lower ends of the end walls are secured to a section 28 on the base by screws 29 and the upper ends of the walls are securedto the .support l8 by screws 30.

The housing is also provided with a shelf 3| upon which the container I0 is positioned "and the shelf is held between the end walls with screws 32.

It will be understood that modifications may 3 regulating vacuum pressures, a housing including a horizontally disposed base for supporting a pump, a pair of spaced parallel side walls extending upwardly from said base and secured thereto, one of said side walls adapted to have a vertically disposed manometer connected thereto, a horizontally disposed shelf arranged above said base for supporting a container, and a vertically disposed 'back' wall" projecting up- Wardly from said base and connect'edto-said side walls, a tube extending from the container and including a vertically disposed portion, a needle valverconnected-to the vertically disposed portion of said tube, and a filter connected to the lower end of said vertically disposed portion.

' JOHN OGNANOVICH.

References Cited in the file of this patent FOREIGN PATENTS Number a Country =Da te 808,275 FrancesM-"fie ;Nov. 6,'1*936 

